Year Percent of GDP 1995 8.934 1996 8.655 1997 8.545 1998 8.076 1999 7.129 2000 6.489 2001 6.891 2002 6.794 2003 6.849 2004 7.252 2005 7.401 2006 7.776 2007 7.712 2008 14.907 2009 15.724 2010 19.786 2011 18.703 2012 21.72 2013 23.685 2014 22.741 2015 22.193 2016 20.683 2017 22.961 2018 21.809 2019 21.615 2020 21.271 2021 21.003 2022 20.521 2023 20.026 2024 19.576